sera-slackbot/Bot/Commands/InvalidBotCommand.cs

using System.Text.Json;
using Microsoft.AspNetCore.Http;

using SlackAPI;

using sera_slackbot.Library;

namespace sera_slackbot.Commands
{
    public class InvalidBotCommand : IBotCommand, IBotInteraction
    {
        private string channelId;
        private string userId;
        private string message;

        private string missingCommand;
        public InvalidBotCommand(string missingCommand)
        {
            this.missingCommand = missingCommand;
        }

        public void ExtractValidData(JsonElement slackEvent)
        {
            this.channelId = slackEvent.GetProperty("channel").ToString();
            this.userId = slackEvent.GetProperty("user").ToString();
        }

        public bool WillTrigger(JsonElement slackEvent)
        {
            return true;
        }

        public dynamic Run(SlackClient client)
        {
            message = $"Whoops! I'm sorry, \u003C@{userId}\u003E, but something is wrong in my command list.";
            client.PostMessage(response => { }, channelId, message);
            message = $"I can't seem to find '{missingCommand}'.";
            client.PostMessage(response => { }, channelId, message);
            return new
            {
                code = StatusCodes.Status200OK,
                body = ""
            };
        }

        public dynamic Interaction(SlackClient client, JsonElement payload, string actionValue)
        {
            var channelId = payload.GetProperty("container").GetProperty("channel_id").ToString();
            var userId = payload.GetProperty("user").GetProperty("id").ToString();
            client.PostMessage(response =>
            {
                client.PostMessage(response => { }, channelId, $"I'm so sorry, \u003C@{userId}\u003E, but something is wrong with this interaction.");
            }, channelId, $"Oh no! I can't seem to find '{missingCommand}'!");

            return new
            {
                code = StatusCodes.Status405MethodNotAllowed,
                body = ""
            };
        }
    }
}